Stecco, A., Pirri, C., De Caro, R. and Raghavan, P. 2019. Stiffness and echogenicity: Development of a stiffness-echogenicity matrix for clinical problem solving. European Journal of Translational Myology. 29, 3 (Sep. 2019). DOI:https://doi.org/10.4081/ejtm.2019.8476.